I 495 SB over Water Concord River
GoodMiddlesex County, Massachusetts · 3.2KM South of Rt 38 · Structure no. L15082AQBDOTNBI
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 187 ft
- 1 main span
- Daily traffic
- 64,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
I 495 SB over Water Concord River is a steel stringer/multi-beam or girder carrying I 495 SB over Water Concord River in Middlesex County, Massachusetts. It was built in 2011, so it is 14 years old, younger than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 64,400 vehicles a day, roughly 10% of them trucks, projected to reach 181,620 by 2032. The structure is 187 ft (56.9 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 495 SB over Water Concord River built?
It was built in 2011, making it 14 years old in 2025.
What condition is I 495 SB over Water Concord River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does I 495 SB over Water Concord River carry?
About 64,400 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is I 495 SB over Water Concord River?
The structure is 187 ft (56.9 m) long with a longest span of 180 ft (54.9 m) and a deck 58 ft wide.
Who owns I 495 SB over Water Concord River?
It is owned by the State Highway Agency.